Purification of the dichloromethane (CH2Cl2) fraction of the aqueous extract of Rubus suavissimus resulted in the isolation of two sterols namely stigmasterol and β-sitosterol. The structures of the isolated compounds were characterized on the basis of extensive spectral data (1D and 2D NMR; and MS) and in comparison with their literature data.

Confuciusornis sanctus stands out among the remarkable diversity of Mesozoic birds recently unearthed from China. Not only is this primitive beaked pygostylian (birds with abbreviated caudal vertebrae fused into a pygostyle) much more abundant than other avian taxa of this age but differences in plumage between specimens--some having a pair of long stiff tail feathers--have been interpreted as ...

The complete sequence of plasmid pEA29 from Erwinia amylovora strain Ea88 consists of 28,185 bp with a 50.2% G+C content. As deletions and insertions were detected in other derivatives of pEA29, its size actually varied from 27.6 to 34.9 kb. Thirteen open reading frames that encoded predicted proteins with similarities to known proteins from other bacteria were identified along with two open re...

− A new quercetin 3-O-trisaccharide was isolated from the leaves of Rubus crataegifolius (Rosaceae). The structure of this compound was determined as quercetin 3-O-α-L-arabinofuranosyl-(1→ 2)-β-D-xylopyranosyl(1→ 2)-β-D-galactopyranoside on the basis of 2D-NMR spectroscopic data. This flavonol glycoside was isolated for the first time from a natural source.

The article presents the current state of two pasture varieties types from Anabasis salsa: 1. salsa with Caroxylon orientale, Artemisia terrae-albae, A. kemrudica; 2. terrae-albae and sparse-mixed shrubs (Convolvulus fruticosus, Lycium ruthenicum, brachiata, Nanophyton erinaceum, Nitraria schoberi, Malacocarpus crithmifolius, Xylosalsola chiwensis), single specimens Crambe edentula in Karakalpa...